DE4029433A1 - zeolite - Google Patents

zeolite

Info

Publication number
DE4029433A1
DE4029433A1 DE19904029433 DE4029433A DE4029433A1 DE 4029433 A1 DE4029433 A1 DE 4029433A1 DE 19904029433 DE19904029433 DE 19904029433 DE 4029433 A DE4029433 A DE 4029433A DE 4029433 A1 DE4029433 A1 DE 4029433A1
Authority
DE
Germany
Prior art keywords
zeolite
membrane
openings
characterized
crystals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19904029433
Other languages
German (de)
Inventor
Joerg Dr Kaerger
Harry Dr Pfeifer
Elfriede Dr Sextl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Degussa GmbH
Original Assignee
Evonik Degussa GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Evonik Degussa GmbH filed Critical Evonik Degussa GmbH
Priority to DE19904029433 priority Critical patent/DE4029433A1/en
Publication of DE4029433A1 publication Critical patent/DE4029433A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/14Dynamic membranes
    • B01D69/141Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10After treatment, characterised by the effect to be obtained
    • B01J2229/26After treatment, characterised by the effect to be obtained to stabilize the total catalyst structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30After treatment, characterised by the means used
    • B01J2229/42Addition of matrix or binder particles

Description

Die Erfindung betrifft eine Zeolithmembran. The invention relates to a zeolite membrane.

Gegenstand der Erfindung ist eine Zeolithmembran, welche dadurch gekennzeichnet ist, daß Zeolithkristalle gegebenenfalls mit ihrer Längsachse achsenparallel in den Öffnungen einer Matrix bildenden Substanz ausgerichtet sind. The present invention is a zeolite membrane, which is characterized in that zeolite crystals parallel to the axis forming the openings in a matrix substance are aligned, where appropriate, with its longitudinal axis.

Ein weiterer Gegenstand der Erfindung ist ein Verfahren zur Herstellung der Zeolithmembran, welches dadurch gekennzeichnet ist, daß man Zeolithkristalle in die Öffnungen der die Matrix bildenden Substanz hineingibt und gegebenenfalls die Öffnungen verschließt. Another object of the invention is a method for manufacturing the zeolite membrane, which is characterized in that in zeolite crystals are in the openings of the matrix forming substance and optionally closing the apertures.

Die erfindungsgemäße Zeolithmembran kann bei chemischen Reaktionen oder physikalischen Trennverfahren als Membran eingesetzt werden. The zeolite membrane according to the invention can be used in chemical reactions or physical separation methods as the membrane. Ein derartiger Einsatz erfolgt zum Beispiel bei der Trocknung von organischen Substanzen, die mit Wasser ein azeotropes Gemisch bilden, zum Beispiel bei der Trocknung von Äthanol. Such an insert is carried out, for example, in the drying of organic substances which form an azeotropic mixture with water, for example in the drying of ethanol.

Beispiele Examples

Zeolith ZSM-5-Kristalle werden in einem Satz paralleler Röhren mit einem inneren Durchmesser von 100 bis 200 µm gefüllt. Zeolite ZSM-5 crystals are filled into a set of parallel tubes having an inner diameter of 100 to 200 microns. (vgl. Fig. 1 und 2). (see. Figs. 1 and 2).

Der Satz paralleler Röhren wird hergestellt, indem man ein Bündel von Polymerkapillaren in Polyurethan einbettet und in schmale Scheiben mit einer Dicke von 5 mm schneidet. The set of parallel tubes is prepared by embedding a bundle of Polymerkapillaren in polyurethane and cut into thin slices having a thickness of 5 mm. Auf diese Weise können 80 mg Zeolith ZSM-5-Kristalle in einem Kubikzentimeter untergebracht werden. In this way 80 mg of zeolite ZSM-5 crystals can be accommodated in one cubic centimeter.

Vor der Einbringung des Zeolithpulvers werden die Polyurethanscheiben bei einer Temperatur von 100°C über einen Zeitraum von 24 Stunden erhitzt und evakuiert. Prior to the introduction of the zeolite powder, the polyurethane sheets are heated at a temperature of 100 ° C over a period of 24 hours, and evacuated. Dadurch wird eine Zerstörung der Zeolithkristalle bei der Aktivierung innerhalb der Kapillarröhren vermieden. As a result destruction of the zeolite crystals in the activation inside the capillary tubes is avoided.

Claims (3)

1. Zeolithmembran, dadurch gekennzeichnet, daß Zeolithkristalle gegebenenfalls mit ihrer Längsachse achsenparallel in den Öffnungen einer Matrix bildenden Substanz ausgerichtet sind. 1. A zeolite membrane, characterized in that zeolite crystals parallel to the axis forming the openings in a matrix substance are aligned, where appropriate, with its longitudinal axis.
2. Verfahren zur Herstellung der Zeolithmembran nach Anspruch 1, dadurch gekennzeichnet, daß man Zeolithkristalle in die Öffnungen der die Matrix bildenden Substanz hineingibt und gegebenenfalls die Öffnungen verschließt. 2. The method for producing the zeolite membrane according to claim 1, characterized in that in zeolite crystals are in the openings of the matrix forming substance and optionally closing the apertures.
3. Verwendung der Zeolithmembran als Membran bei chemischen Reaktionen oder physikalischen Trennverfahren. 3. Use of the zeolite membrane as a membrane for chemical reactions or physical separation methods.
DE19904029433 1990-09-17 1990-09-17 zeolite Withdrawn DE4029433A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19904029433 DE4029433A1 (en) 1990-09-17 1990-09-17 zeolite

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19904029433 DE4029433A1 (en) 1990-09-17 1990-09-17 zeolite
EP19910114305 EP0476363A1 (en) 1990-09-17 1991-08-26 Zeolite membrane
JP26052791A JPH0584432A (en) 1990-09-17 1991-09-12 Zeolite membrane, its production and method for chemical reaction or physical separation

Publications (1)

Publication Number Publication Date
DE4029433A1 true DE4029433A1 (en) 1992-03-19

Family

ID=6414405

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19904029433 Withdrawn DE4029433A1 (en) 1990-09-17 1990-09-17 zeolite

Country Status (3)

Country Link
EP (1) EP0476363A1 (en)
JP (1) JPH0584432A (en)
DE (1) DE4029433A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5672388A (en) * 1994-07-08 1997-09-30 Exxon Research & Engineering Company Membrane reparation and poer size reduction using interfacial ozone assisted chemical vapor deposition
US5824617A (en) * 1994-07-08 1998-10-20 Exxon Research & Engineering Company Low alkaline inverted in-situ crystallized zeolite membrane
US5871650A (en) * 1994-07-08 1999-02-16 Exxon Research And Engineering Company Supported zeolite membranes with controlled crystal width and preferred orientation grown on a growth enhancing layer
US7507576B2 (en) 2001-03-28 2009-03-24 Canon Kabushiki Kaisha Method of manufacturing probe carrier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9423805D0 (en) * 1994-11-25 1995-01-11 Bratton Graham J Dehydration apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3407149A1 (en) * 1984-02-28 1985-08-29 Basf Ag Membranes from organic polymers containing crystalline traegerverbindungen, their preparation and use
US4740219A (en) * 1985-02-04 1988-04-26 Allied-Signal Inc. Separation of fluids by means of mixed matrix membranes
WO1989009642A1 (en) * 1988-04-07 1989-10-19 Kuip P C V D Matrix membrane

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924630A (en) * 1957-06-28 1960-02-09 Union Oil Co Fluid diffusion fractionation
BE756296A (en) * 1969-09-18 1971-03-17 Philips Nv Mono-layer membrane
JP2641309B2 (en) * 1988-01-07 1997-08-13 エイチジエイエル・プロジエクツ・アンド・デベロツプメンツ・リミテツド Molecular sieve structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3407149A1 (en) * 1984-02-28 1985-08-29 Basf Ag Membranes from organic polymers containing crystalline traegerverbindungen, their preparation and use
US4740219A (en) * 1985-02-04 1988-04-26 Allied-Signal Inc. Separation of fluids by means of mixed matrix membranes
WO1989009642A1 (en) * 1988-04-07 1989-10-19 Kuip P C V D Matrix membrane

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5672388A (en) * 1994-07-08 1997-09-30 Exxon Research & Engineering Company Membrane reparation and poer size reduction using interfacial ozone assisted chemical vapor deposition
US5824617A (en) * 1994-07-08 1998-10-20 Exxon Research & Engineering Company Low alkaline inverted in-situ crystallized zeolite membrane
US5849980A (en) * 1994-07-08 1998-12-15 Exxon Research And Engineering Company Low alkaline inverted in-situ crystallized zeolite membrane
US5871650A (en) * 1994-07-08 1999-02-16 Exxon Research And Engineering Company Supported zeolite membranes with controlled crystal width and preferred orientation grown on a growth enhancing layer
US7507576B2 (en) 2001-03-28 2009-03-24 Canon Kabushiki Kaisha Method of manufacturing probe carrier

Also Published As

Publication number Publication date
JPH0584432A (en) 1993-04-06
EP0476363A1 (en) 1992-03-25

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8130 Withdrawal